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If not, or if you don't know, maybe you shouldn't be too anxious to flout your ignorance of this topic
This isn't the only study. It's just one I posted. This study was funded because doctors in California are reporting improvement in patients treated with medical marijuana. They are trying to determine why.

Same as the Multiple Sclerosis study. NMSS is funding the study to determine the effectiveness of marijuana with a new system that objectively measures spasticity. NMSS believes this study is the first marijuana MS study to meet rigorous scientific standards for data.
NMSS funded this study because of reports from doctors and patients on the benefits of medical marijuana in the treatment of Multiple Sclerosis.

These studies weren't possible (they were illegal) before the Compassionate Use Act was passed in California. Many more scientific studies of marijuana are underway in California.
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